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Excellent anti-fouling performance of PVDF polymeric membrane modified by enhanced CaA gel-layer
Sun-Jie Xu,Gui-E Chena,Zhen-Liang Xu 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.58 No.-
Calcium alginate gel-layer polymeric membranes with excellent anti-fouling ability were developed viadip-coating method through sodium alginate and calcium chloride to form gel-layers onto differentpolyvinylidenefluoride membranes. SEM, FT-IR, DCA and mechanical properties were operated forcharacterization. Comprehensive investigation of anti-fouling ability including PWF, FRR%, long-termperformances with fouling resistances were conducted. Results showed a significant improvement aftercross-linking, in which recovery rate reached to 99.2% and kept steady while contact angle decreasedremarkably. Enhanced gel-layer with MWCNTs-COOH was also developed and applied in the commercialPVDF MF membrane and applied in fresh milk emulsion concentration.